Oat Flour Calories and Nutrition Facts
Oat Flour has 389 calories per 100 g, with 13.2 g protein, 69.9 g carbs and 6.3 g fat. Official USDA analytical record: Flour, oat, whole grain (FDC ID: 2261421).
A 100g serving of oat flour contains 389 calories, 13.2g protein, 69.9g total carbs (59.4g net carbs), and 6.3g fat.
Energy density
3.89 kcal/g
medium
Protein / 100 kcal
3.4 g
satiety per calorie
Net carbs / 100 g
59.4 g
carbs minus fibre
100 kcal portion
26 g
≈ 0.9 oz
- Sugars
- 0g
- Fibre
- 10.5g
- Saturated fat
- 0g
- Sodium
- 4mg
Flour, oat, whole grain nutrition facts
The table below shows the complete nutritional profile for flour, oat, whole grain per 100 g (the laboratory analytical standard), alongside the share of the FDA Daily Value each nutrient covers. Most of its calories come from carbohydrate, and it is high in protein (13.2 g per 100 g), a good source of fibre.
| Nutrient | Per 100 g | % DV* |
|---|---|---|
| Calories | 389 kcal | — |
| Protein | 13.2 g | 26% |
| Carbohydrate | 69.9 g | 25% |
| Fat | 6.3 g | 8% |
| Sugars | 0 g | — |
| Fibre | 10.5 g | 38% |
| Saturated fat | 0 g | 0% |
| Sodium | 4 mg | 0% |
*Percent Daily Value per 100 g, against the FDA reference intakes for adults and children 4+ years (50 g protein, 275 g carbohydrate, 28 g fibre, 78 g fat, 20 g saturated fat, 2300 mg sodium). Total sugars has no Daily Value — the 50 g reference applies to added sugars only, and USDA reports total sugars here.
Oat Flour calories by weight: ounces, pounds and grams
USDA publishes this food per 100 g, so here is the same profile converted to the weights a kitchen scale and a US recipe actually use. At 3.89 kcal per gram (medium energy density), medium energy density — portion size starts to matter, so weigh it if you are tracking closely.
| Amount | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| 1 oz (28 g) | 110 kcal | 3.7 g | 19.8 g | 1.8 g |
| 100 g (3.5 oz) | 389 kcal | 13.2 g | 69.9 g | 6.3 g |
| 4 oz (113 g) | 441 kcal | 15 g | 79.3 g | 7.1 g |
| 8 oz / ½ lb (227 g) | 882 kcal | 29.9 g | 158.5 g | 14.3 g |
| 1 lb (454 g) | 1764 kcal | 59.9 g | 317.1 g | 28.6 g |
Data sourced from USDA FoodData Central Foundation Foods dataset (public domain, CC0). Laboratory food profile and analytical measurements verified under USDA FDC ID 2261421.
View raw USDA laboratory entry →How oat flour compares to other grains & pasta
Against the 41 grains & pasta in this database, oat flour ranks 39th lowest in calories and 10th highest in protein. The category averages 372 kcal per 100 g, so this one is 5% above it. The lightest option in the category is buckwheat, whole grain at 356 kcal per 100 g, and the protein leader is chia seeds, dry, raw at 17 g per 100 g.
| Grains & Pasta (by calories) | Calories | Protein | kcal/g |
|---|---|---|---|
| 🍽️ Flour, amaranth | 384 kcal | 13.2 g | 3.84 |
| 🍽️ Flour, quinoa | 385 kcal | 11.9 g | 3.85 |
| 🥣 Flour, oat, whole grain (this page) | 389 kcal | 13.2 g | 3.89 |
| 🍽️ Sorghum bran, white, unenriched, dry, raw | 403 kcal | 11.2 g | 4.03 |
| 🍽️ Chia seeds, dry, raw | 517 kcal | 17 g | 5.17 |
Portion planning with oat flour
- 100 calories comes to about 26 g (0.9 oz).
- 20 g of protein takes about 152 g, bringing 591 kcal with it — that is 3.4 g of protein per 100 calories.
- Fibre density is 2.7 g per 100 calories, covering 38% of the daily fibre target per 100 g.
- Macro split by calories: 72% carbs, 14% protein, 15% fat.
Nutrient screening detail
The badges near the top of this page come from screening the per-100 g values against the FDA nutrient-content thresholds in 21 CFR 101.54–101.62. The regulations define those claims per reference serving rather than per 100 g, so treat these as a like-for-like comparison between foods, not as a statement about a product label:
- High protein — 13.2 g per 100 g (≥ 20% DV)
- High fibre — 10.5 g per 100 g (≥ 20% DV)
- Low saturated fat — 0 g per 100 g (≤ 1 g)
- Sodium free — 4 mg per 100 g (< 5 mg)
- Sugar free — 0 g total sugars per 100 g (< 0.5 g)
Track oat flour for free
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Oat Flour FAQ & Nutrition Questions
How many calories and carbs are in 100 g of oat flour?
One serving of 100 g provides 389 calories, 69.9 g total carbs (59.4 g net carbs), 13.2 g protein, and 6.3 g fat.
How many calories are in 100 g of oat flour?
Oat Flour contains 389 calories per 100 g, with 13.2 g protein, 69.9 g carbohydrate, and 6.3 g fat. Use the interactive calculator above to scale to any custom amount.
What is the USDA FoodData Central (FDC) ID for oat flour?
The official USDA FoodData Central ID for "Flour, oat, whole grain" is FDC ID: 2261421. You can view the verified laboratory analytical record on the USDA FoodData Central Database.
What is the macronutrient breakdown of oat flour?
By calories, oat flour is approximately 72% carbohydrates, 14% protein, and 15% fat.
How many calories are in an ounce of oat flour?
One ounce (28 g) of oat flour has 110 calories, with 3.7 g protein, 19.8 g carbs and 1.8 g fat. Four ounces (113 g) comes to 441 calories, and a full pound (454 g) to 1764 calories.
How much oat flour is 100 calories?
About 26 g of oat flour supplies 100 calories, because it carries 3.89 kcal per gram (medium energy density). Medium energy density — portion size starts to matter, so weigh it if you are tracking closely.
How much oat flour do I need for 20 g of protein?
Roughly 152 g of oat flour, which also brings 591 calories with it. That works out to 3.4 g of protein per 100 calories.
How many net carbs are in oat flour?
Per 100 g, oat flour has 59.4 g net carbs — 69.9 g total carbohydrate minus 10.5 g fibre.
Is oat flour high or low in calories for a grains & pasta?
Oat Flour sits 5% above the grains & pasta average of 372 kcal per 100 g, ranking 39th lowest of 41 in this category.
Is this nutrition data free to use?
Yes. The data is sourced directly from USDA FoodData Central (CC0 public domain). Viewing and scaling portions here is 100% free with no sign-up — and you can log this food free in our online food diary.